NBEO Part II Treatment and Management of Ocular Disease (TMOD) Practice Test

Glitazones can cause fluid retention and affect retinal vessels, leading to macular edema. Among the options, pioglitazone has the strongest and most documented link to this eye complication. The mechanism involves PPAR gamma activation increasing capillary permeability and fluid accumulation in the retinal layers, which can produce blurred vision or distortion.

The other drugs listed do not have a notable association with macular edema. If a patient on pioglitazone develops vision changes, they should be evaluated for macular edema, and management may include adjusting diabetes therapy and referring to ophthalmology.